CN209943066U

CN209943066U - Oil pump control cabinet of hydraulic jumbolter

Info

Publication number: CN209943066U
Application number: CN201920714775.3U
Authority: CN
Inventors: 李华茂
Original assignee: Shanghai Lidrill Information Technology Center
Current assignee: Shanghai Lidrill Information Technology Center
Priority date: 2019-05-19
Filing date: 2019-05-19
Publication date: 2020-01-14
Anticipated expiration: 2029-05-19

Abstract

The utility model provides a hydraulic jumbolter oil pump control cabinet, includes two sets of hydraulic oil pumps and the cabinet body, time controller, switching power supply, solenoid valve and temperature switch, still has control circuit, and two sets of hydraulic oil pumps, four sets of solenoid valves are installed respectively in the cabinet body, and two sets of hydraulic oil pumps are connected with first, second, third, fourth solenoid valve and two tubular metals, and time controller, switching power supply, control circuit install on the circuit board to be connected through the wire with two sets of hydraulic oil pumps, solenoid valve and temperature switch. This novel two sets of hydraulic oil pump work in turn, the motor temperature of hydraulic oil pump can not be too high, output is bigger to can not lead to the job schedule to receive the influence because of shutting down, two sets of hydraulic oil pump one of them hydraulic oil pump work in, when the motor temperature superelevation takes place because of various reasons, can automatic switch to another set of hydraulic oil pump and continue work, guaranteed the normal clear of job schedule from this, improved work efficiency, and reach automated control purpose.

Description

Oil pump control cabinet of hydraulic jumbolter

Technical Field

The utility model relates to a rig corollary equipment field, especially a fluid pressure type jumbolter oil pump control cabinet.

Background

Hydraulic jumbolters are commonly used drilling tools in construction. The hydraulic jumbolter is mainly divided into a handheld jumbolter, a crawler-type jumbolter, a leg-type top jumbolter and the like. The main structures of a leg type or handheld type hydraulic jumbolter, a crawler-type jumbolter and the like comprise a hydraulic oil pump, a hydraulic motor, a drill bit and the like which are matched with each other, when the hydraulic jumbolter works, hydraulic oil pumped out from a liquid outlet end of the hydraulic oil pump enters a liquid inlet end of the hydraulic motor and flows out from the liquid outlet end of the hydraulic motor to flow back into an oil tank of the hydraulic oil pump through a liquid return end of the hydraulic oil pump, then the hydraulic oil in the oil tank is pressurized by the hydraulic oil pump again and flows out from the liquid outlet end to enter the liquid inlet end of the hydraulic motor, and therefore, a rotating shaft of the hydraulic motor can rotate.

The hydraulic oil pump (for convenience of moving, preventing foreign matter collision damage and the like, the hydraulic oil pump is generally installed in a control cabinet) is used as an important corollary device of the hydraulic jumbolter, and whether the hydraulic jumbolter works normally or not is a precondition related to whether the hydraulic jumbolter can work normally or not. Because hydraulic oil pump operational environment is abominable, the load is big, and after continuous long-time work, the temperature rise can take place too high for hydraulic oil pump's motor, and output also can corresponding decline, and hydraulic oil pump's motor is generally furnished with protection circuit, can break off the power of motor after the temperature surpasses the setting value to play the guard action to the motor, like this because hydraulic oil pump stop work, can lead to slowing down of job schedule. After the hydraulic oil pump is used for a long time, various mechanical and electrical properties of the hydraulic oil pump are reduced (such as abrasion of mechanical parts and aging of electrical parts), the probability of overtemperature or damage is higher, the working efficiency is reduced, and further the drilling working progress is influenced.

Based on the above, the oil pump control cabinet provided with the main hydraulic oil pump and the auxiliary hydraulic oil pump is provided, the two hydraulic oil pumps automatically and circularly work alternately, and the working modes of the two hydraulic oil pumps can be automatically switched according to the temperature rise of the motors of the two hydraulic oil pumps, so that the hydraulic jumbolter can normally work.

Disclosure of Invention

In order to overcome the defects that only one set of hydraulic oil pump is arranged in the control cabinet of the existing hydraulic jumbolter, the working environment of the hydraulic oil pump is severe, the load is large, the hydraulic oil pump works continuously for a long time, the temperature rise of the motor of the hydraulic oil pump is too high, the output power is correspondingly reduced, so that the hydraulic oil pump stops working, the work progress is influenced due to corresponding easy damage, the utility model provides a hydraulic jumbo pump which is provided with two sets of main and auxiliary hydraulic oil pumps, adopts a time controller to control the two sets of hydraulic oil pumps to work circularly, the two sets of hydraulic oil pumps work alternately, the temperature of the motor of the hydraulic oil pump is not too high, the output power is larger, and the work progress is not influenced due to shutdown, one set of the two sets of hydraulic oil pumps can automatically switch to the other set of hydraulic oil pump to work continuously, The hydraulic jumbolter oil pump control cabinet improves the working efficiency and achieves the aim of automatic control.

The utility model provides a technical scheme that its technical problem adopted is:

a hydraulic jumbolter oil pump control cabinet comprises two sets of hydraulic oil pumps, a cabinet body, a time controller, a switching power supply, electromagnetic valves and a temperature switch, and is characterized by further comprising a control circuit, wherein the two sets of hydraulic oil pumps are respectively arranged at the inner lower part of the cabinet body, four sets of electromagnetic valves are respectively arranged on the rear side of the inner upper end of the cabinet body, liquid outlet ends of the two sets of hydraulic oil pumps are respectively connected with liquid inlet ends of a first electromagnetic valve and a third electromagnetic valve, liquid return ends of the two sets of hydraulic oil pumps are respectively connected with liquid inlet ends of a second electromagnetic valve and a fourth electromagnetic valve, liquid outlet ends of the first electromagnetic valve and the third electromagnetic valve are respectively connected with two joints of one metal pipe, liquid outlet ends of the second electromagnetic valve and the fourth electromagnetic valve are respectively connected with two joints of the other metal pipe, one end of the two metal pipes is sealed, and the other end of the two metal pipes is respectively connected, The liquid outlet end is connected, two temperature switches are respectively arranged at the outer sides of motor shells of two sets of hydraulic oil pumps, a time controller, a switching power supply and a control circuit are arranged on a circuit board, the circuit board is arranged in an element box, a 220V alternating current power supply can be connected with the power input two ends of the switching power supply through leads respectively, the power output two ends of the switching power supply are connected with the power input two ends of the time controller through leads respectively, the first positive power output end of the time controller is connected with one end of a motor upper temperature switch of the first set of hydraulic oil pump and the direct current control power input end of the first control circuit through leads respectively, the second positive power output end of the time controller is connected with one end of a motor upper temperature switch of the second set of hydraulic oil pump and the direct current control power input end of the second control circuit through leads respectively, the other end of the motor upper temperature switch of the first set of hydraulic oil pump The power supply input ends are respectively connected through leads, the other end of a temperature switch on a motor of the second set of hydraulic oil pump, the negative power supply output end of a switching power supply and the positive and negative pole power supply input ends of the second set of control circuit are respectively connected through leads, a 380V three-phase power supply line and the control power supply input ends of the two paths of control circuits are respectively connected through leads, the first path of control power supply output end of the first path of control circuit and the power supply input ends of the first and second electromagnetic valves are respectively connected through leads, the second path of control power supply output end of the first path of control circuit and the power supply input ends of the third and fourth electromagnetic valves are respectively connected through leads, the first path of power supply output end of the first path of control circuit and the motor power supply input end of the first set of hydraulic oil pump are respectively connected through leads, the second path of power supply output end of the, the first path of control power output end of the second path of control circuit is connected with the power input ends of the third and fourth electromagnetic valves through leads, the second path of control power output end of the second path of control circuit is connected with the power input ends of the first and second electromagnetic valves through leads, the first path of power output end of the second path of control circuit is connected with the power input end of the motor of the second set of hydraulic oil pump through leads, and the second path of power output end of the second path of control circuit is connected with the power input end of the motor of the first set of hydraulic oil pump through leads.

The time controller is a microcomputer time control switch, the time controller is matched with a relay, the positive power output end of the time controller is connected with the positive power input end of the relay and the control power input end of the relay through leads, and the negative power output end of the time controller is connected with the negative power input end of the relay through leads.

The switching power supply is a switching power supply module converting Alternating Current (AC) 220V into Direct Current (DC).

The inner valve core of the electromagnetic valve is of a normally closed structure.

The temperature switch is a kick type temperature switch, and the internal contact is a normally open structure.

The two paths of control circuits are consistent in structure and respectively comprise three relays which are connected through circuit board wiring, a normally closed contact end of a first relay is connected with a positive power input end of a second relay and a positive power input end of a third relay, a control power input end of the first relay is connected with a control power input end of the third relay, and a negative power input end of the first relay is connected with a negative power input end of the second relay, a negative power input end of the third relay and a negative control power input end.

The utility model has the advantages that: the utility model discloses in the use, adopt two sets of hydraulic oil pump cycle work of time controller control, two sets of hydraulic oil pump work in turn, the motor temperature of hydraulic oil pump can not be too high, output power is bigger to can not lead to the job schedule to receive the influence because of shutting down. When one of the two sets of hydraulic oil pumps works, if the temperature of the hydraulic oil pump motor is ultrahigh, the control circuit for controlling the working of one set of hydraulic oil pump can automatically close one set of hydraulic oil pump and the corresponding electromagnetic valve to stop working, so that the problem that the fault is expanded due to faulty working when the temperature is abnormally increased due to the fault of the hydraulic oil pump motor is avoided, meanwhile, the control circuit for controlling the working of one set of hydraulic oil pump can automatically connect the other set of hydraulic oil pump and the corresponding electromagnetic valve to automatically work, the other set of hydraulic oil pump continues to work, the normal working progress is ensured, the working efficiency is improved, and the purpose of automatic control is achieved. Based on the above, so the utility model discloses good application prospect has.

Drawings

The invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a circuit diagram of the present invention.

Detailed Description

As shown in figure 1, the hydraulic jumbolter oil pump control cabinet comprises two sets of hydraulic oil pumps 101 and 102, a cabinet body 2, a time controller 3, a switching power supply 4, electromagnetic valves 51, 52, 53 and 54, temperature switches 61 and 62, a front door 21 and a rear side end of the cabinet body 2 are provided with a plurality of openings as heat dissipation holes, and a control circuit 8 is further provided, the two sets of hydraulic oil pumps 101 and 102 are respectively installed at the left end and the right end of the inner lower part of the cabinet body 2 through screw nuts, four sets of electromagnetic valves 51, 52, 53 and 54 are respectively installed at the rear side of the right upper end in the cabinet body 2 through screw nuts, liquid outlet ends of the two sets of hydraulic oil pumps 101 and 102 are respectively connected with liquid inlet ends of a first electromagnetic valve 51 and a third electromagnetic valve 53 through hydraulic oil pipes, liquid return ends of the two sets of hydraulic oil pumps 101 and 102 are respectively connected with liquid inlet ends of a second electromagnetic valve 52 and a fourth, The liquid outlet end of the third electromagnetic valve 53 is connected with two joints of one metal pipe 91 through hydraulic oil pipes, the liquid outlet ends of the second electromagnetic valve 52 and the fourth electromagnetic valve 54 are connected with two joints of the other metal pipe 92 through hydraulic oil pipes, one ends of the two metal pipes 91 and 92 are sealed, the other ends of the two metal pipes 91 and 92 are connected with the liquid inlet end and the liquid outlet end of a hydraulic motor of a hydraulic anchor rod drilling machine through hydraulic hoses, the two temperature switches 61 and 62 are installed on the outer sides of motor housings of the two sets of hydraulic oil pumps 101 and 102 through screws, heat-conducting silicone grease is arranged between the temperature sensing surfaces of the temperature switches 61 and 62 and the housing of the motor, the time controller 3, the switching power supply 4 and the control circuit 8 are installed on a circuit board, the circuit board is installed in the element box 7, and the element box 7 is installed on the rear side of the middle.

As shown in fig. 2, hydraulic oil pumps M1, M2 are of the SMET type SMET-U2HP4CC40L12P, with a power of 2 KW. The time controller U2 is a microcomputer time control switch product with the brand CHNT/Zhengtai and the model KG316T, which comprises two 12V power input ends 1 and 2 pins, two power output ends 3 and 4 pins, a liquid crystal display screen, a plurality of operation keys, wherein the operation keys are respectively a cancel/recovery, time correction, week correction, automatic/manual, timing and clock key, when in use, the keys are respectively operated through the numbers displayed by the liquid crystal display screen, the time of the power output ends 3 and 4 pins can be set, the microcomputer time control switch product is internally provided with a lithium storage battery, as long as the secondary adjustment is not carried out, the external 12V power supply is powered off, the internally set time program cannot be changed, the time controller U2 is provided with a relay K1, the operation keys and the display screen of the time controller U2 are positioned outside the front end of the element box, the 3 feet of the positive power output end of the time controller U2 are connected with the positive power input end of the relay K1 and the control power input end through leads, and the negative power output end of the time controller U2 is connected with the negative power input end of the relay K1 through leads. The switching power supply U1 is a finished product of a brand bright weft AC 220V-to-12V DC switching power supply module. The electromagnetic valves DC1, DC2, DC3 and DC4 are 12V direct current electromagnetic valves of the brand orthodox family, and the inner valve cores of the electromagnetic valves are of a normally closed structure. The temperature switches RT and RT1 are 90 ℃ kick type aluminum shell temperature switches, and the internal contacts are of a normally open structure. The first path of control circuit comprises three relays K2, K3 and K4 which are connected through circuit board wiring, a normally closed contact end of a first relay K4 is connected with a positive power input end of a second relay K2, a positive power input end of a third relay K3 is connected, a control power input end of a relay K4 is connected with a control power input end of a third relay K3, a negative power input end of the first relay K4 is connected with a negative power input end of a second relay K2, a negative power input end of the third relay K3 is connected with a negative control power input end. The second circuit comprises three relays K5, K6 and K7 which are connected through circuit board wiring, a normally closed contact end of the first relay K6 is connected with a positive power input end of the second relay K7 and a positive power input end of the third relay K5, a control power input end of the first relay K6 is connected with a control power input end of the third relay K5, a negative power input end of the first relay K6 is connected with a negative power input end of the second relay K7, and a negative power input end of the third relay K5 is connected with a negative control power input end.

As shown in fig. 2, the 220V ac power source can be connected to the

power input terminals

1 and 2 of the switching power source U1 through wires. Two ends 3 and 4 of the power output of the switch power supply U1 are respectively connected with two

ends

1 and 2 of the power input of the time controller U2 through leads. A normally open contact end of a first path of positive power output end relay K1 of the time controller U2 is respectively connected with one end of a temperature switch RT on a motor of the first set of hydraulic oil pump and control power input ends of a direct current control power input end relay K4 and a direct current control power input end relay K3 of a first path of control circuit through leads. The normally closed contact end of a second path of positive power supply output end relay K1 of the time controller is respectively connected with one end of a temperature switch RT1 on a motor of the second set of hydraulic oil pump and the control power supply input ends of direct current control power supply input end relays K6 and K5 of the second path of control circuit through leads. The other end of a temperature switch RT on a motor of the first set of hydraulic oil pump, 4 pins of a negative power output end of a switching power supply U1, and a positive power input end of a positive and negative power input end relay K4 and a negative power input end of a relay K4 of the first path of control circuit are respectively connected through leads. The other end of a temperature switch RT1 on a motor of the second set of hydraulic oil pump, a pin 4 of a negative power output end of a switching power supply U1, a positive power input end of a relay K6 and a negative power input end of a relay K6 are respectively connected through leads. The 380V three-phase power line is connected with the control power input end of the two-way control circuit, namely the relay K2 and the three control power input ends of the relay K7 through leads respectively (a power switch is arranged between the 380V three-phase power line and the three control power input ends of the control power input end of the two-way control circuit, namely the relay K2 and the relay K7, and control is facilitated). Two normally open contact ends of a first path control power output end relay K3 of the first path control circuit are respectively connected with two power input ends of a first electromagnetic valve DC1 and a second electromagnetic valve DC2 through leads. Two normally closed contact ends of a second path of control power output end relay K3 of the first path of control circuit are respectively connected with two power input ends of a third electromagnetic valve DC3 and a fourth electromagnetic valve DC4 through leads. Three normally open contact ends of a first path power output end relay K2 of the first path control circuit are respectively connected with three power input ends of a motor M1 of the first set of hydraulic oil pump through leads. Three normally closed contact ends of a second power output end relay K2 of the first path of control circuit are respectively connected with three power input ends of a motor of the second set of hydraulic oil pump M2 through leads. Two normally open contact ends of a first path control power output end relay K5 of the second path control circuit are respectively connected with two power input ends of a third electromagnetic valve DC2 and a fourth electromagnetic valve DC4 through leads. Two normally closed contact ends of a second path control power output end relay K5 of the second path control circuit are respectively connected with two power input ends of the first electromagnetic valve DC1 and the second electromagnetic valve DC2 through leads. Three normally open contact ends of a first path power supply output end relay K7 of the second path control circuit are respectively connected with three power supply input ends of a motor M2 of the second set of hydraulic oil pump through leads. And three normally closed contact ends of a second power supply output end relay K7 of the second control circuit are respectively connected with three power supply input ends of a motor of the first set of hydraulic oil pump M1 through leads.

Shown in fig. 1 and 2, in the novel use, the cabinet door of the cabinet body 2 can be opened, and the heat dissipation of the

hydraulic oil pumps

101 and 102 is more facilitated. After a 220V alternating current power supply enters two power supply input ends of a switching power supply U1, two

pins

3 and 4 of a power supply output end of the switching power supply U1 can output a stable 12V direct current power supply and enter two power

supply input ends

1 and 2 of a time controller U2, under the control time set by an internal circuit and a technician, the

pins

3 and 4 of the time controller U2 can output 1-hour power supply firstly, and then 1-hour power supply is output every 1 hour in a circulating mode. When the time controller U2 works just after being electrified, 3 and 4 pins of the time controller U2 output power for 1 hour and enter the positive and negative pole power input ends of the relay K1, so that the relay K1 is electrified to pull in the power input end and the normally open contact end to be closed; the control power input end of the relay K1 (communicated with the pin 3 of the time controller U2) and the 12V power anode output by the normally open contact end enter the power input end of the relay K4 anode through two ends of a temperature switch RT on the motor of the first set of hydraulic oil pump (meanwhile, the 12V power anode enters the control power input ends of the relays K4 and K3), and because the temperature of the shell of the motor is lower than 90 ℃, two contacts in the temperature switch RT are opened, the relay K4 loses power and the control power input end and the normally closed contact are closed; because the positive and negative pole power input ends of the relays K2 and K3 are respectively communicated with the normally closed contact end of the relay K4 and the 4-pin of the switch power supply U1, the relays K2 and K3 can be electrically attracted at the moment; three control power supply input ends and three normally open contact ends of a relay K2 are respectively closed, and two control power supply input ends and two normally open contact ends of a relay K3 are respectively closed; because three control power supply input ends of the relay K2 and a 380V three-phase power supply are respectively connected through leads, three normally open contact ends of the relay K2 are respectively connected with three power supply input ends of a motor M1 of a first set of hydraulic oil pump, within 1 hour, the motor M1 of the first set of hydraulic oil pump can be electrified to work, hydraulic oil is pressurized and pumped out from a liquid outlet end under the action of internal related mechanisms of the first set of hydraulic oil pump, because two control power supply input ends of the relay K3 are respectively communicated with a control power supply input end of the relay K4 and a pin 4 of a switching power supply U1, two normally open contact ends of the relay K3 are respectively connected with two power supply input ends of a first electromagnetic valve DC1 and a second electromagnetic valve DC2 through leads, within 1 hour, the first electromagnetic valve DC1 and the second electromagnetic valve DC2 can be used as internal valve cores of the electric motor to be opened; therefore, within 1 hour, the hydraulic oil pumped out from the liquid outlet end of the first set of hydraulic oil pump 101 enters the liquid inlet end of the hydraulic motor of the hydraulic jumbolter through the hydraulic oil pipe, the internal valve core of the electromagnetic valve DC1 and the first metal pipe 91, and flows back into the oil tank of the first set of hydraulic oil pump 101 from the liquid outlet end of the hydraulic motor through the hydraulic hose, the second metal pipe 92 and the internal valve core of the electromagnetic valve DC2, and then the hydraulic oil in the oil tank is pressurized by the first set of hydraulic oil pump 101 again and flows out from the liquid outlet end to the liquid inlet end of the hydraulic motor, so that the rotating shaft of the hydraulic motor rotates and drives the drill bit to operate under the driving of the. In practical use, when the temperature rise of the motor M1 is overhigh due to overlarge load or motor faults and the like within 1 hour, after the temperature of the shell of the motor M1 exceeds 90 ℃, two normally open contacts inside a temperature switch RT on the motor shell of the first set of hydraulic oil pump are closed, so that the relay K4 can be electrically attracted, the control power supply input end and the normally closed contact end of the relay are disconnected, further, the relay K2 and the relay K3 cannot be electrically operated, the control power supply input end and the normally open contact end of the relay are opened, the motor M1 of the first set of hydraulic oil pump does not work any more, the hydraulic oil output end of the first set of hydraulic oil pump does not output hydraulic oil any more, and the electromagnetic valves DC1 and DC2 do not work any more, and the; three control power supply input ends and three normally closed contact ends of a relay K2 are closed after the relay K3 is powered off, two control power supply input ends and two normally closed contact ends of the relay K3 are closed after the relay K3 is powered off, and because three power supply input ends of a motor M2 of a second set of hydraulic oil pump are connected with three normally closed contact ends of the relay K2, the motor M2 of the second set of hydraulic oil pump can be powered on to work after the first set of hydraulic oil pump stops working within 1 hour, and because two power supply input ends of a third electromagnetic valve DC3 and a fourth electromagnetic valve DC4 are connected with two normally closed contact ends of the relay K3, an electric worker can open an inner valve core of the third electromagnetic valve DC3 and the fourth electromagnetic valve DC4 after the first electromagnetic valve DC1 and the second electromagnetic valve DC2 stop working within 1 hour; after the electric motor M of the second set of hydraulic oil pump works by being electrified, under the action of the internal related mechanism of the second set of hydraulic oil pump 102, hydraulic oil pumped from the liquid outlet end by the second set of hydraulic oil pump 102 is pressurized and pumped out from the liquid outlet end, enters the liquid inlet end of the hydraulic motor of the hydraulic jumbolter through the hydraulic oil pipe, the valve core inside the electromagnetic valve DC3 and the first metal pipe 91, and flows back into the oil tank of the second set of hydraulic oil pump 102 from the liquid outlet end of the hydraulic motor through the hydraulic hose, the second metal pipe 92 and the valve core inside the electromagnetic valve DC4, and then the hydraulic oil in the oil tank is pressurized again by the second set of hydraulic oil pump 102 and is pumped out from the liquid outlet end and enters the liquid inlet end of the hydraulic motor, so that the rotating shaft of the hydraulic motor rotates.

As shown in fig. 1 and 2, the time controller U2 works when it is powered on, and after outputting power for 1 hour from its 3 and 4 pins, it will stop outputting power for 1 hour and enter the positive and negative poles power input terminals of the relay K1, so that the relay K1 is no longer powered off and pulls its control power input terminal and normally closed contact terminal to close; the control power supply input end of the relay K1 (communicated with the pin 3 of the time controller U2) and the 12V power supply anode output by the normally closed contact end enter the power supply input end of the relay K6 anode through two ends of a motor upper temperature switch RT1 of the second set of hydraulic oil pump (meanwhile, the 12V power supply anode enters the control power supply input ends of the relays K6 and K5), and because the shell temperature of the motor is lower than 90 ℃ at the moment, two contacts in the temperature switch RT1 are opened, the relay K6 loses power and the control power supply input end and the normally closed contact are closed; because the positive and negative pole power input ends of the relays K7 and K5 are respectively communicated with the normally closed contact end of the relay K6 and the 4-pin of the switch power supply U1, the relays K7 and K5 can be electrically attracted at the moment; three control power supply input ends and three normally open contact ends of a relay K7 are respectively closed, and two control power supply input ends and two normally open contact ends of a relay K5 are respectively closed; because three control power supply input ends of the relay K7 are respectively connected with a 380V three-phase power supply through leads, three normally open contact ends of the relay K7 are respectively connected with three power supply input ends of a motor M2 of the second set of hydraulic oil pump, within 1 hour, the motor M2 of the second set of hydraulic oil pump can be electrified to work, hydraulic oil is pressurized and pumped out from a liquid outlet end under the action of internal related mechanisms of the second set of hydraulic oil pump 102, because two control power supply input ends of the relay K5 are respectively communicated with a control power supply input end of the relay K6 and a 4-pin of a switching power supply U1, two normally open contact ends of the relay K5 are respectively connected with two power supply input ends of a third electromagnetic valve DC3 and a fourth electromagnetic valve DC4 through leads, within 1 hour, the third electromagnetic valve DC3 and the fourth electromagnetic valve DC4 can be used as internal valve cores of the electric oil pump to; therefore, within 1 hour, the hydraulic oil pumped out from the liquid outlet end by the second set of hydraulic oil pump 102 enters the liquid inlet end of the hydraulic motor of the hydraulic jumbolter through the hydraulic oil pipe, the valve core inside the electromagnetic valve DC3 and the first metal pipe 91, and flows back into the oil tank of the second set of hydraulic oil pump 102 from the liquid outlet end of the hydraulic motor through the hydraulic hose, the second metal pipe 92 and the valve core inside the electromagnetic valve DC4, and then the hydraulic oil in the oil tank is pressurized by the second set of hydraulic oil pump 102 again and pumped out from the liquid outlet end into the liquid inlet end of the hydraulic motor, so that the rotating shaft of the hydraulic motor rotates and drives the drill bit to operate under the driving of the hydraulic oil. In practical use, when the temperature rise of the motor M2 is too high due to overload or motor failure in the second set of hydraulic oil pump 102 within 1 hour, after the temperature of the housing of the motor M2 exceeds 90 ℃, two normally open contacts inside the temperature switch RT1 on the motor housing of the second set of hydraulic oil pump are closed, so that the relay K6 can be electrically attracted to disconnect the control power input end and the normally closed contact end, further, the relays K7 and K5 can not be electrically operated to open the control power input end and the normally open contact end, the motor M2 of the second set of hydraulic oil pump can not work any more, the liquid outlet end of the second set of hydraulic oil pump can not output hydraulic oil any more, and the electromagnetic valves DC3 and DC4 can not work any more, and the internal valve cores thereof are closed; after the relay K7 is powered off, three control power supply input ends and three normally closed contact ends of the relay K7 are closed, after the relay K5 is powered off, two control power supply input ends and two normally closed contact ends of the relay K5 are closed, and because the three power supply input ends of the motor M1 of the first set of hydraulic oil pump are respectively connected with the three normally closed contact ends of the relay K7, after the second set of hydraulic oil pump 102 stops working within 1 hour, the motor M1 of the first set of hydraulic oil pump can be powered on to work, and because the two power supply input ends of the first electromagnetic valve DC1 and the second electromagnetic valve DC2 are respectively connected with the two normally closed contact ends of the relay K5, after the third electromagnetic valve DC3 and the fourth electromagnetic valve DC4 stop working within 1 hour, the first electromagnetic valve DC1 and the second electromagnetic valve DC2 can be electrically operated as valve cores to open the; after the motor M1 of the first set of hydraulic oil pump works with electricity, under the action of an internal related mechanism of the first set of hydraulic oil pump 101, hydraulic oil pumped from the liquid outlet end by the first set of hydraulic oil pump 101 is pressurized and pumped out from the liquid outlet end, enters the liquid inlet end of the hydraulic motor of the hydraulic jumbolter through the hydraulic oil pipe, the valve core inside the electromagnetic valve DC1 and the first metal pipe 91, and flows back into the oil tank of the first set of hydraulic oil pump 101 from the liquid outlet end of the hydraulic motor through the hydraulic hose, the second metal pipe 92 and the valve core inside the electromagnetic valve DC2, and then the hydraulic oil in the oil tank is pressurized again by the first set of hydraulic oil pump 101 and pumped out from the liquid outlet end and enters the liquid inlet end of the hydraulic motor, so that under the driving of the hydraulic oil, the rotating shaft.

As shown in fig. 2, after the

pins

3 and 4 of the time controller U2 stop outputting one-hour power to the positive and negative pole power input terminals of the relay K1, the

pins

3 and 4 of the time controller U2 output one-hour power to the positive and negative pole power input terminals of the relay K1, further, the motor M1 and the solenoid valves DC1 and DC2 of the first set of hydraulic oil pump are powered on to work for one hour again, after one hour, the

pins

3 and 4 of the time controller U2 stop outputting one-hour power to the positive and negative pole power input terminals of the relay K1 again, further, the motor M2 and the solenoid valves DC3 and DC4 of the second set of hydraulic oil pump are powered on to work for one hour again, and the two sets of hydraulic oil pumps can work alternately (until the input power switch of the switching power supply U1 is turned off and the input power supply of 380V is turned off, the two sets of hydraulic oil pumps are not powered on again), the motor temperature of the hydraulic, The output power is higher, and the working progress cannot be influenced due to shutdown; meanwhile, in the working process of one of the two sets of hydraulic oil pumps, if the temperature of the hydraulic oil pump motor is ultrahigh, the control circuit for controlling the working of one set of hydraulic oil pump can automatically close one set of hydraulic oil pump and the corresponding electromagnetic valve to stop working, so that the fault expansion caused by faulty working when the temperature is abnormally increased due to the fault of the hydraulic oil pump motor is avoided, the control circuit for controlling the working of one set of hydraulic oil pump can automatically connect the other set of hydraulic oil pump and the corresponding electromagnetic valve to automatically work, the other set of hydraulic oil pump continues to work, the working progress is ensured, the working efficiency is improved, and the purpose of automatic control is achieved. The relays K1, K3, K4, K6 and K5 are DC12V relays of Songle brand, and are provided with two power supply input ends, two normally open contact ends, two normally closed contact ends and two control power supply input ends, wherein the model is JQX-15F/12VDC-1 HS; the relays K2, K7 are DC12V relays of common brand, having three power input terminals, three normally open contact terminals, three normally closed contact terminals, three control power input terminals, model HH 53P.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but rather can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A hydraulic jumbolter oil pump control cabinet comprises two sets of hydraulic oil pumps, a cabinet body, a time controller, a switching power supply, electromagnetic valves and a temperature switch, and is characterized by further comprising a control circuit, wherein the two sets of hydraulic oil pumps are respectively arranged at the inner lower part of the cabinet body, four sets of electromagnetic valves are respectively arranged on the rear side of the inner upper end of the cabinet body, liquid outlet ends of the two sets of hydraulic oil pumps are respectively connected with liquid inlet ends of a first electromagnetic valve and a third electromagnetic valve, liquid return ends of the two sets of hydraulic oil pumps are respectively connected with liquid inlet ends of a second electromagnetic valve and a fourth electromagnetic valve, liquid outlet ends of the first electromagnetic valve and the third electromagnetic valve are respectively connected with two joints of one metal pipe, liquid outlet ends of the second electromagnetic valve and the fourth electromagnetic valve are respectively connected with two joints of the other metal pipe, one end of the two metal pipes is sealed, and the other end of the two metal pipes is respectively connected, The liquid outlet end is connected, two temperature switches are respectively arranged at the outer sides of motor shells of two sets of hydraulic oil pumps, a time controller, a switching power supply and a control circuit are arranged on a circuit board, the circuit board is arranged in an element box, a 220V alternating current power supply can be connected with the power input two ends of the switching power supply through leads respectively, the power output two ends of the switching power supply are connected with the power input two ends of the time controller through leads respectively, the first positive power output end of the time controller is connected with one end of a motor upper temperature switch of the first set of hydraulic oil pump and the direct current control power input end of the first control circuit through leads respectively, the second positive power output end of the time controller is connected with one end of a motor upper temperature switch of the second set of hydraulic oil pump and the direct current control power input end of the second control circuit through leads respectively, the other end of the motor upper temperature switch of the first set of hydraulic oil pump The power supply input ends are respectively connected through leads, the other end of a temperature switch on a motor of the second set of hydraulic oil pump, the negative power supply output end of a switching power supply and the positive and negative pole power supply input ends of the second set of control circuit are respectively connected through leads, a 380V three-phase power supply line and the control power supply input ends of the two paths of control circuits are respectively connected through leads, the first path of control power supply output end of the first path of control circuit and the power supply input ends of the first and second electromagnetic valves are respectively connected through leads, the second path of control power supply output end of the first path of control circuit and the power supply input ends of the third and fourth electromagnetic valves are respectively connected through leads, the first path of power supply output end of the first path of control circuit and the motor power supply input end of the first set of hydraulic oil pump are respectively connected through leads, the second path of power supply output end of the, the first path of control power output end of the second path of control circuit is connected with the power input ends of the third and fourth electromagnetic valves through leads, the second path of control power output end of the second path of control circuit is connected with the power input ends of the first and second electromagnetic valves through leads, the first path of power output end of the second path of control circuit is connected with the power input end of the motor of the second set of hydraulic oil pump through leads, and the second path of power output end of the second path of control circuit is connected with the power input end of the motor of the first set of hydraulic oil pump through leads.

2. A fluid pressure jumbolter pump control cabinet as defined in claim 1, wherein the time controller is a microcomputer time control switch, the time controller is provided with a relay, the positive power output terminal of the time controller is connected with the positive power input terminal of the relay and the control power input terminal of the relay through a wire, and the negative power output terminal of the time controller is connected with the negative power input terminal of the relay through a wire.

3. The oil pump control cabinet of a hydraulic jumbolter according to claim 1, wherein the switching power supply is an ac 220V to dc switching power supply module.

4. The oil pump control cabinet of a hydraulic jumbolter according to claim 1, wherein the internal valve core of the solenoid valve is of a normally closed structure.

5. A fluid pressure jumbolter pump control cabinet as defined in claim 1, wherein the two control circuits are identical in structure and each include three relays connected by circuit board wiring, the normally closed contact terminal of the first relay is connected to the positive power input terminal of the second relay and the positive power input terminal of the third relay, the control power input terminal of the first relay is connected to the control power input terminal of the third relay, and the negative power input terminal of the first relay is connected to the negative power input terminal of the second relay, the negative power input terminal of the third relay and the negative control power input terminal.